A.      Multi-Level Lift-In Cot (Ferno Model 30)     Pic

The primary litter system to be utilized is the Ferno Model 30, multi-level lift-in cot. The cot adjusts to six height levels, ranging from a low of 12” to a maximum of 32.25”, enabling easy patient transfer. To operate the height adjustment mechanism, the medical crew must estimate the patient’s weight prior to raising or lowering the cot bed frame. The telescoping head-end main frame section allows Model 30 to be shortened for easy maneuvering around tight corners.

The multi-level lift in cot is restrained to the medical floor using a combination of anchoring systems designed by Heli-Dyne Systems and Ferno. The forward litter support assembly and the Ferno 175 series (modified) fastener allow for the rapid installation and removal of the cot.

Note: Additional Cots, such as the Ferno Model 28 or 35, can be used in place of the
           Ferno Model 30.

Features and Benefits

• Tubular aluminum construction provides durability and strength.
• Simple X-frame undercarriage is easy to maintain. Scuff strips are not required.
• Ratchet bar adjustment mechanism is simple to operate and permit six levels of height adjustment.
• Foot-end lead handle enables the medical crew to easily control the direction of the cot.
• Swing-down side rails enable convenient patient transfer from cot to bed.
• Telescoping head-end frame permits overall length to be reduced for maneuvering.
• Adjustable backrest angle from 0º to 75º allows patient to be positioned in the most comfortable position during transport.
• Four 5" 360º swivel wheels enable the cot to be easily handled and moved.
• Full-length bolster mattress provides comfort and minimizes lateral movement of patient during transport. The materials used to upholster the mattress and "naugahyde" covering of the mattress are both certified to be in compliance with FAR 25.853(b) and 2.855.
• Patient Restraint System ensures maximum safety of the patient during transport.

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B.      Secondary Stretcher

The secondary stretcher system is typically of an all aluminum design, the construction of which offers both lightweight and strength to the traditional backboard design used for the removal and transport of patients from the accident scene. The stretcher is equipped with a patient restraint system as well as provisions for securing it in the aircraft. When fully opened it extends to a length of 72.0” by 18.0” wide, folded for storage the unit measures 36.0” x 18.0” x 2.5” and weighs 17.5 pounds. The backboard has a load capacity of 350 pounds. The stretcher/backboard when folded in half stores in the aft right side of the cabin.

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C.      High Intensity Cabin Lighting     Pic

There will be a six (6) unit, true spectrum High Intensity Lighting system installed in the cabin area and feature controllable intensity. This light intensity output (foot candles) and proximity of the lights with respect to the patient closely approximates emergency department diagnostic lighting characteristics.

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D.      Three Place Side Facing Attendant Seat     Pic

The side facing three place attendant seat is a bench style design. When necessary it can be quickly converted into a raised litter platform so as to accommodate and secure the installation of a secondary stretcher. Adding to the versatility of the seat, the aft portion is also removable so that a balloon pump may be installed or simply to make room for additional cargo.

Construction of the seat structure is all metal, comprised of aluminum panels with a honeycomb core. The materials used in the upholstery of the seat cushions, a medium density, open-cell polyurethane foam* and “naugahyde” covering of the seats are both certified to be in compliance with FAR 25.853(b) and 25.855.

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E.      Medical Attendant Seats     Pic

The aft facing medical attendant seat (x1) features a manual flip-up seat bottom, adjustable lumbar spine support and an integrated four point restraint system. The seats have a combined structure weight of only 44 pounds. The medical attendant seat is FAA approved and carries a TSO C 39A Certification. The materials used in the upholstery, a medium density, open-cell polyurethane foam* and “naugahyde” covering of the seats are certified to be in compliance with FAR 25.853(b) and 25.855.

*Medium density, open-cell polyurethane foam is temperature-sensitive, softening when it comes in contact with a warm surface. In a seat cushion, the foam softens and conforms to the occupant’s body. This provides even pressure distribution and unrestricted blood circulation, significantly reducing discomfort, even over long periods.

The foams softening behavior is localized, the surfaces not exposed to body heat remain firm and supportive to reduce fatigue.

But most important are the foams energy-absorption properties. Many foams deform significantly under impact, storing energy and then releasing it elastically during recoil. Such foams may delay the onset of the occupants acceleration, then rebound suddenly, amplifying the impact response and increasing the possibility of injury.

Tests conducted at the Air Force Aerospace Medical Research Laboratory at Wright-Patterson Air Force Base found that a medium density, open-cell polyurethane foam minimizes such deformation and elastic recoil during impact loading.

Comparing various seat cushion materials on a 3.35-meter vertical deceleration tower, researchers found that the cushions significantly lowered seat loads as well as the occupant’s head and chest accelerations.

Unlike many of the materials tested, the foam selected for use in Heli-Dyne Systems medical attendant seats behaves like a semi-rigid substance when impacted quickly, absorbing up to 97 percent of the impact energy without bottoming out. Further, it exhibits slow recovery, little energy is returned to the impacting body.

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F.      Medical Utility Floor     Pic

A composite, non-structural medical utility floor will be installed in the passenger cabin. The purpose of the floor is twofold. First, is utilitarian, serving as a barrier so that escaping body and medical fluids might be better contained and not contaminate aircraft structure that is highly susceptible to their corrosive effects. Secondly, provide a relatively clean, attractive and safe platform for the medical crew to perform their duties.

The floor is composite “sandwich” whose outer skins are fiberglass and core is Klegecell, a high performance PVC foam, that provides a strong, durable yet lightweight floor panel.

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G.      Liquid Oxygen System     Pic

The Liquid Oxygen Converter System provides a safe, lightweight and compact means of storing, pressurizing and supplying ten (10) liters of liquid oxygen. The unit will be located in the aircraft cabin area aft of the compartment housing the cyclic and collective flight control linkages between the attendants seats.

To provide the air and ground maintenance crews a means of monitoring the remaining level of liquid oxygen a capacitance probe has been installed in the tank.

The system features a wedge base with a single retaining wing nut for mounting and only four quick disconnect type connectors are required to separate the converter from the aircraft for refilling.

The converter’s system operating pressure is 70 PSIG with flows in excess of 72 liters per minute of gaseous oxygen over an ambient temperature range of -65ºF to +260ºF.

The system is capable of supplying a maximum quantity of eight thousand (8000) gaseous liters of oxygen. This equates to a flight time of 133 minutes for two (2) Advance Life Support (ALS) patients on high volume/rate flow ventilators at 30 liters per minute (lpm) each; or a total flight time of 88 minutes for six (6) Basic Life Suppport (BLS) patients on BVM’s, and/or a flush flow of 15 lpm per patient.

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H.      Supplemental Oxygen Clamps

Clamps mounted in the right rear cabin area provide for the installation of a lightweight, versatile and portable supplemental oxygen unit that can offer a wide variety of airway maintenance options both on board and off the aircraft. The clamps can accommodate a "D” size cylinder permitting for the treatment of breathing or non-breathing patient with either liter flow or demand valve capabilities.

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I.      Suction System

Collection Container powered by Vacuum Pumps which meet or exceed DOT ground ambulance specification criterion for both rate of flow and millimeters of vacuum provided.

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J.      Locking Drug Box

A double lock Locking Drug Cabinet, constructed of reinforced steel will be installed aft of the nav/comm control panel for secure access by the medical flight personnel.

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K.      Left Hand Window Medical Life Support Panel

The primary Life Support Panel will be mounted in the area of the left hand window in the passenger cabin area. The outlets for the oxygen and suction systems will be arranged on the face of the panel as specified by the medical flight personnel. The panel extends around both sides of the window, with each side including provisions for mounting patient monitoring equipment.

The EMS control panel can also be mounted in this location. Custom-made brackets allow for securing the suction canister to the panel for patient monitoring. Four electrical outlets providing 110V 20Amp will also be mounted on the panel as required.

The entire Life Support Panel incorporates a “quick disconnect” feature which accommodates routine cleaning and maintenance.

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L.      Blackout Curtain

A special rail constructed from an aluminum extrusion is installed above and behind the pilot and copilot seats, this rail extends from the door posts on either side of the aircraft to the central control closet and acts as the primary support for the blackout curtain. The curtain is sealed on either side by velcro strips that are attached to the curtain and mating surfaces on the door posts and control closet. The blackout curtain separates and preserves the light integrity of the cockpit during night operations.

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M.      Soft Storage Pockets

Soft Storage Pockets, constructed of vinyl will be provided and can be mounted in the following areas: aft cabin “clam shell” doors, control pylon panel (front) and cabin door posts. Additional or special pocket arrangements can be recommended and quoted separately.

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N.      EMS Control Panel     Pic

The EMS Control Panel accommodates the Electrical Controls for High Intensity Cabin Lighting, Oxygen and Vacuum, Loading Lights, Work Lights, Inverters, Converters, and miscellaneous medical equipment. The EMS Control Panel is located on the left hand medical wall above the window or on the communications console. The final design of the Panel configuration is highly dependent upon the specifications set forth by the medical flight personnel, and depends upon the individual mission requirements.

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O.      I.V. with Hooks (4 each Pans/ 2 each Hooks)     Pic

Four (4) I.V. pans, two on each side of the aircraft, will be installed above both the Primary and Secondary Patient locations. Each pan will have two (2) I.V. hooks each. The pans are flush mounted into the cabin interior ceiling, and the hooks can be easily accessed by the medical attendants in flight as well as during the loading and unloading of the patient.

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P.      Intravenous (I.V.) Warmer/Cooler     Pic

Heli-Dyne Systems’ new I.V. Warmer/Cooler was specifically developed for today’s E.M.S. market to provide an effective reliable temperature controlled environment for storing I.V. fluid and other temperature sensitive medical articles. Some of the new design features are listed belows:

• Built in power converter - Allows for continuous 115 VAC airborne/shore power operation.
• Light Weight and compact fiberglass construction - Designed for restricted space: H x W x D: 7.0" x 17" x 11.0", Empty weight 13 lbs.
• Powerful 140 Watt heating capacity - Allows for the warming of 5 one Liter I.V. bags from an average room storage temperature of 21ºC (70ºF) to 32ºC (90ºF) in one hour.
• A 50 Watt cooling capacity - 50 Watt thermoelectric heat pump design allows for the removal of excess heat and regulates the temperature within ±3 degrees of the desired setting.
• Digital temperature controller - Automatically regulates the temperature inside the I.V. Warmer/Cooler to a preset value selected by the operator. The measured temperature inside the compartment is continuously displayed on the controller in Celsius degrees.
• Built in storage slots for 4 ampoules or medicine vials.

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